Method and apparatus for data packet transport in a wireless...

Details Method and apparatus for data packet transport in a wireless... Method and apparatus for data packet transport in a wireless...

H - Electricity

04

L

H04L 12/18 (2006.01) G06F 17/30 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04L 29/08 (2006.01)

Patent

CA 2464304

Method and apparatus for data packet transport in a wireless transmission system supporting broadcast transmissions. A multicast tree is built between nodes through neighboring routers. The multicast tree forms a tunnel through which the broadcast content is transmitted. The broadcast message is encapsulated in an Internet Protocol packet for transmission through the multicast tree. At least one multicast tree is formed between the Internet portion of the system and the wireless portion of the system, such as the Access Network. In one embodiment, an external multicast tree is formed between a content source and a packet data service node, and an internal multicast tree is formed between the packet data service node and a packet control function node.

L'invention porte sur un procédé et un appareil de transport de paquets de données dans un système de transmission sans fil qui support des transmissions de radiodiffusion. Un arbre de diffusion sélective est installé entre des noeuds à travers des routeurs avoisinants. Cet arbre de diffusion sélective forme un tunnel à travers lequel le contenu de radiodiffusion est transmis. Ce message de radiodiffusion est encapsulé dans un paquet de protocole Internet à transmettre au moyen de l'arbre de diffusion sélective. Au moins un arbre de diffusion sélective est installé entre la partie Internet du système et la partie sans fil du système, tel que le réseau d'accès. Dans un mode de réalisation, un arbre de diffusion sélective externe est installé entre une source de contenu et un noeud de service de données par paquet, et un arbre de diffusion sélective est installé entre le noeud de service de données par paquet et un noeud de fonction de commande de paquet.

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